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crypto: tcrypt - add multi buf ahash jiffies test

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The multi buffer concurrent requests ahash speed test only
supported the cycles mode. Add support for the so called
jiffies mode that test performance of bytes/sec.

We only add support for digest mode at the moment.

Signed-off-by: Gilad Ben-Yossef <gilad@benyossef.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Gilad Ben-Yossef 2017-12-17 08:29:03 +00:00 committed by Herbert Xu
parent 8fcdc86856
commit b34a0f67ba
1 changed files with 82 additions and 30 deletions
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112
crypto/tcrypt.c
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@ -413,13 +413,87 @@ struct test_mb_ahash_data {
char *xbuf[XBUFSIZE];
};
static void test_mb_ahash_speed(const char *algo, unsigned int sec,
static inline int do_mult_ahash_op(struct test_mb_ahash_data *data, u32 num_mb)
{
int i, rc[num_mb], err = 0;
/* Fire up a bunch of concurrent requests */
for (i = 0; i < num_mb; i++)
rc[i] = crypto_ahash_digest(data[i].req);
/* Wait for all requests to finish */
for (i = 0; i < num_mb; i++) {
rc[i] = crypto_wait_req(rc[i], &data[i].wait);
if (rc[i]) {
pr_info("concurrent request %d error %d\n", i, rc[i]);
err = rc[i];
}
}
return err;
}
static int test_mb_ahash_jiffies(struct test_mb_ahash_data *data, int blen,
int secs, u32 num_mb)
{
unsigned long start, end;
int bcount;
int ret;
for (start = jiffies, end = start + secs * HZ, bcount = 0;
time_before(jiffies, end); bcount++) {
ret = do_mult_ahash_op(data, num_mb);
if (ret)
return ret;
}
pr_cont("%d operations in %d seconds (%ld bytes)\n",
bcount * num_mb, secs, (long)bcount * blen * num_mb);
return 0;
}
static int test_mb_ahash_cycles(struct test_mb_ahash_data *data, int blen,
u32 num_mb)
{
unsigned long cycles = 0;
int ret = 0;
int i;
/* Warm-up run. */
for (i = 0; i < 4; i++) {
ret = do_mult_ahash_op(data, num_mb);
if (ret)
goto out;
}
/* The real thing. */
for (i = 0; i < 8; i++) {
cycles_t start, end;
start = get_cycles();
ret = do_mult_ahash_op(data, num_mb);
end = get_cycles();
if (ret)
goto out;
cycles += end - start;
}
out:
if (ret == 0)
pr_cont("1 operation in %lu cycles (%d bytes)\n",
(cycles + 4) / (8 * num_mb), blen);
return ret;
}
static void test_mb_ahash_speed(const char *algo, unsigned int secs,
struct hash_speed *speed, u32 num_mb)
{
struct test_mb_ahash_data *data;
struct crypto_ahash *tfm;
unsigned long start, end;
unsigned long cycles;
unsigned int i, j, k;
int ret;
@ -483,34 +557,12 @@ static void test_mb_ahash_speed(const char *algo, unsigned int sec,
i, speed[i].blen, speed[i].plen,
speed[i].blen / speed[i].plen);
start = get_cycles();
if (secs)
ret = test_mb_ahash_jiffies(data, speed[i].blen, secs,
num_mb);
else
ret = test_mb_ahash_cycles(data, speed[i].blen, num_mb);
for (k = 0; k < num_mb; k++) {
ret = crypto_ahash_digest(data[k].req);
if (ret == -EINPROGRESS) {
ret = 0;
continue;
}
if (ret)
break;
crypto_req_done(&data[k].req->base, 0);
}
for (j = 0; j < k; j++) {
struct crypto_wait *wait = &data[j].wait;
int wait_ret;
wait_ret = crypto_wait_req(-EINPROGRESS, wait);
if (wait_ret)
ret = wait_ret;
}
end = get_cycles();
cycles = end - start;
pr_cont("%6lu cycles/operation, %4lu cycles/byte\n",
cycles, cycles / (num_mb * speed[i].blen));
if (ret) {
pr_err("At least one hashing failed ret=%d\n", ret);